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Reports binary expressions that consist of different operators without parentheses.
<p>Such expressions can be less readable due to different <a href="https://kotlinlang.org/docs/reference/grammar.html#expressions">precedence rules</a> of operators.</p>
<p>Example:</p>
<pre>
  fun foo(b: Boolean?, i: Int?) {
      val x = b ?: i == null // evaluated as `(b ?: i) == null`
      val y = i ?: 0 + 1 // evaluated as `i ?: (0 + 1)`
  }
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